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Finding the Fourth Proportional to 271,990.80, 407,824.20 and 166,885.20

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Solution

The fourth proportional to 271,990.80, 407,824.20 and 166,885.20 is: 250,228.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,990.80 : 407,824.20 = 166,885.20 : x
  2. Step 2: Convert to fraction form
    271,990.80/407,824.20 = 166,885.20/x
  3. Step 3: Cross multiply
    271,990.80x = 407,824.20 × 166,885.20
  4. Step 4: Simplify right side
    271,990.80x = 68,059,823,181.84
  5. Step 5: Solve for x
    x = 68,059,823,181.84/271,990.80
  6. Step 6: Final answer
    x = 250,228.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.